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Cheap flights from Saint Thomas Island to Washington, D.C. from $172

This is the cheapest round-trip flight price found by a momondo user in the last 72 hours by searching for a flight from Saint Thomas Island to Washington, D.C. departing on 7/14. Fares may change, and may not be available for all flights or travel dates. Click the price to refresh the search for this deal.
1 adult
0 bags

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Cheap round-trip flights

Frontier Logo
5:14 pm - 11:56 amSTT-IAD
18h 42m1 stop
Frontier Logo
12:24 pm - 4:29 pmIAD-STT
28h 05m1 stop
$172Frontier
Find Deal
Mon, Jul 14 - Sun, Jul 20
Frontier Logo
5:14 pm - 11:56 amSTT-IAD
18h 42m1 stop
Frontier Logo
7:46 pm - 4:29 pmIAD-STT
20h 43m2 stops
$383Frontier
Find Deal
Mon, Jul 14 - Sun, Jul 20
 Logo
4:05 pm - 2:23 pmSTT-IAD
22h 18m2 stops
 Logo
11:58 am - 12:30 pmIAD-STT
24h 32m2 stops
Thu, Jul 17 - Sun, Jul 27
 Logo
10:43 am - 2:23 pmSTT-IAD
27h 40m3 stops
 Logo
11:58 am - 12:30 pmIAD-STT
24h 32m2 stops
Thu, Jul 17 - Sun, Jul 27
United Airlines Logo
1:02 pm - 4:25 pmSTT-IAD
4h 23mnonstop
United Airlines Logo
8:15 am - 1:12 pmIAD-STT
3h 57mnonstop
$460United Airlines
Find Deal
Thu, Nov 6 - Tue, Nov 11
American Airlines Logo
12:35 pm - 7:31 pmSTT-IAD
7h 56m1 stop
American Airlines Logo
5:03 am - 3:48 pmIAD-STT
9h 45m1 stop
$469American Airlines
Find Deal
Wed, Nov 5 - Tue, Nov 11
United Airlines Logo
4:45 pm - 8:57 pmSTT-IAD
4h 12mnonstop
United Airlines Logo
8:15 am - 12:17 pmIAD-STT
4h 02mnonstop
$503United Airlines
Find Deal
Fri, Aug 1 - Wed, Aug 6
Delta Logo
2:49 pm - 11:17 pmSTT-IAD
8h 28m1 stop
Delta Logo
6:30 am - 2:40 pmIAD-STT
8h 10m1 stop
$562Delta
Find Deal
Sat, Sep 20 - Sat, Oct 4
Delta Logo
3:50 pm - 11:17 pmSTT-IAD
7h 27m1 stop
Delta Logo
6:30 am - 2:40 pmIAD-STT
8h 10m1 stop
$604Delta
Find Deal
Sat, Sep 20 - Sat, Oct 4
American Airlines Logo
4:00 pm - 11:59 pmSTT-IAD
7h 59m1 stop
American Airlines Logo
5:39 pm - 10:45 amIAD-STT
17h 06m1 stop
$667American Airlines
Find Deal
Thu, Jul 3 - Mon, Jul 7

Frontier flights from Saint Thomas Island to Washington, D.C. Dulles Intl Airport

Our best Frontier deals on Saint Thomas Island to Washington, D.C. Dulles Intl Airport flight tickets
Frontier
Jul 14
STT5:14 pmSaint Thomas Island Cyril E King
18h 42m
1 stop
IAD11:56 amWashington, D.C. Dulles Intl
Jul 20
IAD12:24 pmWashington, D.C. Dulles Intl
28h 05m
1 stop
STT4:29 pmSaint Thomas Island Cyril E King
Frontier
Jul 14
STT5:14 pmSaint Thomas Island Cyril E King
18h 42m
1 stop
IAD11:56 amWashington, D.C. Dulles Intl
Jul 20
IAD7:46 pmWashington, D.C. Dulles Intl
20h 43m
2 stops
STT4:29 pmSaint Thomas Island Cyril E King
Frontier
Jun 13
STT5:12 pmSaint Thomas Island Cyril E King
19h 32m
2 stops
IAD12:44 pmWashington, D.C. Dulles Intl
Jun 15
IAD12:23 pmWashington, D.C. Dulles Intl
28h 04m
1 stop
STT4:27 pmSaint Thomas Island Cyril E King

United Airlines flights from Saint Thomas Island to Washington, D.C. Dulles Intl Airport

Our best United Airlines deals on Saint Thomas Island to Washington, D.C. Dulles Intl Airport flight tickets
United Airlines
Nov 6
STT1:02 pmSaint Thomas Island Cyril E King
4h 23m
IAD4:25 pmWashington, D.C. Dulles Intl
Nov 11
IAD8:15 amWashington, D.C. Dulles Intl
3h 57m
STT1:12 pmSaint Thomas Island Cyril E King
United Airlines
Aug 1
STT4:45 pmSaint Thomas Island Cyril E King
4h 12m
IAD8:57 pmWashington, D.C. Dulles Intl
Aug 6
IAD8:15 amWashington, D.C. Dulles Intl
4h 02m
STT12:17 pmSaint Thomas Island Cyril E King
United Airlines
Nov 5
STT1:02 pmSaint Thomas Island Cyril E King
4h 23m
IAD4:25 pmWashington, D.C. Dulles Intl
Nov 11
IAD8:15 amWashington, D.C. Dulles Intl
3h 57m
STT1:12 pmSaint Thomas Island Cyril E King

See travel insights to Washington, D.C. from

How to get the cheapest flight ticket from Saint Thomas Island to Washington, D.C. Dulles Intl Airport

Look no further. We've gone through all the searches for this route on momondo so you have the important information and insights to find the cheapest flight ticket for your trip

What is the cheapest day to depart on your flight to Washington, D.C. Dulles Intl Airport?

Our data shows that Saturday is the least expensive day to fly to Washington, D.C. Dulles Intl Airport. Tickets to fly out on this day can be as low as $575. When flying out on a Sunday, the most expensive travel day of the week, you can expect to see flight prices from Saint Thomas Island to Washington, D.C. Dulles Intl Airport for around $933.

What is the cheapest time of day to depart on your flight to Washington, D.C. Dulles Intl Airport?

Flying to Washington, D.C. Dulles Intl Airport from Saint Thomas Island in the morning is the least expensive time of day to depart. momondo users have found prices as low as $623 when looking at flights departing in the morning. If you have a flexible travel schedule, then try to avoid flying in the afternoon when prices are $727 on average. Flights to Washington, D.C. Dulles Intl Airport from Saint Thomas Island in the afternoon are generally more expensive because this time of day is more convenient for travelers’ schedules.

What is the cheapest Saint Thomas Island Cyril E King to Washington, D.C. Dulles Intl flight route?

Fly from Saint Thomas Island Cyril E King to Washington, D.C. Dulles Intl for the best Saint Thomas Island Cyril E King - Washington, D.C. Dulles Intl flight prices

What cabin class options are available on Saint Thomas Island Cyril E King to Washington, D.C. Dulles Intl flights?

There are 4 cabin classes available to choose from on Saint Thomas Island Cyril E King to Washington, D.C. Dulles Intl flights. Cabin price and availability will vary by airline so perform a search above to find the right deals for you.

Can stopping save me money on Saint Thomas Island to Washington, D.C. Dulles Intl Airport flights?

No. A direct flight is the cheapest option for a flight between Saint Thomas Island to Washington, D.C. Dulles Intl Airport.

How have Saint Thomas Island to Washington, D.C. Dulles Intl Airport flight prices changed over time?

As of June 2025, prices for Saint Thomas Island to Washington, D.C. Dulles Intl Airport flights are approximately 18% cheaper when compared to flights at the same time last year.

When to book flights from Saint Thomas Island to Washington, D.C. Dulles Intl Airport

Are you open to changing your travel dates? Check out the ideal times to fly from Saint Thomas Island to Washington, D.C. Dulles Intl Airport according to our flight data. Find out which month and days have the cheapest flights.
Estimated round-trip price

Cheap Saint Thomas Island to Washington, D.C. Dulles Intl Airport (STT to IAD) flight deals and tips

Find info about flight duration, direct flights, and airports for your flight from Saint Thomas Island to Washington, D.C. Dulles Intl Airport

Best Price Found

$187

Fastest flight time

4h 12m

Direct flights

Every day
The best one-way flight to Washington, D.C. Dulles Intl Airport from Saint Thomas Island in the past 72 hours is $187. The best round-trip flight deal from Saint Thomas Island to Washington, D.C. Dulles Intl Airport found on momondo in the last 72 hours is $172.
The fastest flight from Saint Thomas Island to Washington, D.C. Dulles Intl Airport takes 4h 12m
Direct flights go from Saint Thomas Island to Washington, D.C. Dulles Intl Airport every day.

  • How far is Saint Thomas Island Cyril E King to Washington, D.C. Dulles Intl by plane?

    Saint Thomas Island Cyril E King and Washington, D.C. Dulles Intl are 1608.5 mi apart from one another. Flights usually cover this in 4h 12m, depending on flying conditions and air traffic around both airports.

  • When did momondo last update prices for flights from Saint Thomas Island Cyril E King Airport to Washington, D.C. Dulles Intl Airport?

    Prices for flights from Saint Thomas Island Cyril E King Airport to Washington, D.C. Dulles Intl Airport refresh daily.

  • How many operators does momondo search for flights from Saint Thomas Island Cyril E King Airport to Washington, D.C. Dulles Intl Airport?

  • How old do you have to be to fly from Saint Thomas Island Cyril E King Airport to Washington, D.C. Dulles Intl Airport?

    The minimum age for a child to fly alone is five, but airlines that offer an unaccompanied minor (UNMR) service may have their own age limitations. Flight duration, scheduling, and layovers are among the considerations that may influence age limits. We recommend that you double-check with the airline you are booking with for travel from Saint Thomas Island Cyril E King Airport to Washington, D.C. Dulles Intl Airport.

  • What documentation or ID do you need to fly to Washington, D.C. Dulles Intl Airport?

    The travel and health documents required for your trip to Washington, D.C. Dulles Intl Airport can vary based on your itinerary and personal situation. As a rule, consider having multiple documents such as a national ID card or driver’s license, and a passport valid for six-months after you plan to arrive at Washington, D.C. Dulles Intl Airport. We always recommend checking with your airline or a trusted third party such as IATA to get advice.

  • What is the most popular plane model from Saint Thomas Island to Washington, D.C. Dulles Intl Airport?

  • What is the most popular airline from Saint Thomas Island to Washington, D.C. Dulles Intl Airport?


Best airlines flying from Saint Thomas Island to Washington, D.C. Dulles Intl Airport

Compare and see reviews for airlines that fly from Saint Thomas Island to Washington, D.C. Dulles Intl Airport with momondo
Airline
Rating
Free Cancellation
Price
United AirlinesPriceFrom $550Free CancellationRating
7.4
8,790 reviews
Search United Airlines flights
  • United Airlines Flights From Saint Thomas Island to Washington, D.C. Dulles Intl Airport

    United Airlines is one of the most popular airlines flying from Saint Thomas Island to Washington, D.C. Dulles Intl Airport, operating 7 flights/week on average for this route. A good United Airlines flight deal for Saint Thomas Island to Washington, D.C. Dulles Intl Airport starts from $550 round-trip, up to an average price of $755. Our users have rated United Airlines at 7.4/10.


Traveling to a place near Washington, D.C.?

Book flights to Washington, D.C. if you plan to visit one of these locations
Alexandria
Gettysburg
Arlington
National Harbor
Winchester
Laurel
Woodbridge
Silver Spring
Tysons
Waldorf
Fredericksburg
Manassas
Harpers Ferry
Gaithersburg
Towson
Rockville
Fairfax
Linthicum Heights
Glen Burnie
Reston

Why use momondo?

Why should I use momondo to find a flight deal from Saint Thomas Island to Washington, D.C.?

momondo collates all your flight options in one place and lets you filter them to find the perfect flight from Saint Thomas Island to Washington, D.C.. momondo saves you time and could save you money on your trip.

Can I find flights from Saint Thomas Island to Washington, D.C. with flexible booking policies on momondo?

Yes. All flights to Washington, D.C. from Saint Thomas Island on momondo can be compared and filtered by various policies on offer, including flexible booking.

How can momondo help me find flights from Saint Thomas Island to Washington, D.C.?

momondo helps you find the best flight between Saint Thomas Island and Washington, D.C. by providing filters to narrow your choice of flights to those matching your criteria. You can select flights based on numerous factors such as price, departure and landing times, airport and airline.

I’m not ready to book a flight from Saint Thomas Island to Washington, D.C. right now. Can momondo alert me if prices change?

Price alerts on flights to Washington, D.C. from Saint Thomas Island are quick and easy to set up on momondo. Simply perform a search and select the price alert feature. It is as simple as that.


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1 adult
Tue 6/17
Tue 6/24

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